indexo.dev

co-certificatie.nl

.nl crawl

First seen 2026-05-20 · Last seen 2026-05-27 · ok HTTP/1.1 200 1850 ms crawled 2026-05-27

NL · 141.138.169.218 · AS20847 Previder B.V.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
CO-certificatie.nl - De specialist op het gebied van CO-Certificering
Description
Hét informatieplatform voor CO-certificering voor de kleinere installateur. Blijf up-to-date van alle ontwikkelingen omtrent CO-certificatie.
Language
nl-NL
Generator
WordPress 6.7.5
Canonical
https://www.co-certificatie.nl/
Feeds

Open Graph

url
https://www.co-certificatie.nl/
title
CO-certificatie.nl - De specialist op het gebied van CO-Certificering
locale
nl_NL
site name
CO-certificatie
description
Hét informatieplatform voor CO-certificering voor de kleinere installateur. Blijf up-to-date van alle ontwikkelingen omtrent CO-certificatie.

Technology

Server
Apache
CMS
WordPress 6.7.5
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Third-party hosts loaded (7)
  • i0.wp.com×11
  • c0.wp.com×9
  • www.googletagmanager.com×3
  • fonts.googleapis.com×2
  • stats.wp.com×2
  • gmpg.org×1
  • www.google.com×1

Social

Contact

Email
Phone

Registration

Registrar
Antagonist B.V.
Created
2020-10-13
Updated
2025-10-15
Name servers
  • webhostingserver.g1-dns.com
  • webhostingserver.g1-dns.one

DNS records live

NS
  • webhostingserver.g1-dns.com
  • webhostingserver.g1-dns.one
MX
  • 10 mail.co-certificatie.nl

Email authentication strong

SPF
v=spf1 a mx ip4:195.211.72.0/22 ip4:141.138.168.0/21 ip6:2a03:3c00:a001::/48 ip6:2a03:3c00:a002::/48 ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-23 to 2026-08-21
Expires in 82 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://www.co-certificatie.nl/

present
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
Header values
permissions-policy
private-state-token-redemption=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com"), private-state-token-issuance=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com")

Links to (7)

Linked from (1)